Soon a courageous bull-frog gives utterance to a subdued, hesitative croak; his excellent example is quickly followed by others; answering noises spring up in every direction, and ere long the midnight concert of the jungle is again in full melody.

The feeble and hesitative manner in which Aristotle attempts to answer the perplexing questions which present themselves in this connection, indicates very clearly, how little knowledge he has of the perversity of a corrupted heart (Nic., vii, 1-7).